[BUG] - Chinese file error

[LittleSheep2Code]

Description

When my computer container a filename with a Chinese text, the termscp just crashed

Steps to reproduce

Create a file container Chinese text, then connect to server

Expected behaviour

TermSCP do not crash

Environment

• OS: [MacOS]
• Architecture [x86_64]
• termscp version 0.8.1
• Protocol used SFTP

Log

thread 'main' panicked at 'byte index 23 is not a char boundary; it is inside '终' (bytes 21..24) of `「汉字之趣」最终版.pptx`', src/explorer/formatter.rs:
308:37
      note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Additional information

No additional information

[veeso]

Duplicate of #104

[veeso]

PR #109